WASSERABSORBIERENDE HARZZUSAMMENSETZUNG UND VERFAHREN ZU IHRER HERSTELLUNG

An absorbent resin composition which shows high speed of absorption, excels in fluid permeability, and enjoys a high absorption capacity under load comprises primary particles of an absorbent resin and granulated particles of an absorbent resin obtained by granulating particles of absorbent resin ha...

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Bibliographische Detailangaben
Hauptverfasser:	HATSUDA, TAKUMI, NAKAMURA, MASATOSHI, KAJIKAWA, KATSUHIRO
Format:	Patent
Sprache:	ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	An absorbent resin composition which shows high speed of absorption, excels in fluid permeability, and enjoys a high absorption capacity under load comprises primary particles of an absorbent resin and granulated particles of an absorbent resin obtained by granulating particles of absorbent resin having an average particle size smaller than the average particle size of the primary particles. An absorbent article contains the composition. The absorbent resin composition is produced by a method which comprises a step of producing granulated particles by granulating particles of absorbent resin having an average particle size in the range of 10 to 100 mu m and a step of mixing the resultant granulated particles of the absorbent resin with the primary particles of an absorbent resin having an average particle size in the range of 150 to 800 mu m. The granulated particles of an absorbent resin is produced by a method which comprises mixing the particles of absorbent resin with a granulating agent and extruding the resultant mixture through an extrusion granulating device provided with a spherical perforated plate.